INNO Setup is a free installer for Windows programs available at JRSoftware. There is no official unpacker – the only method of getting the files out of the self-extracting executable is to run it. An open source utility called innounp.exe is maintained at Sourceforge. Sourceforge has maintained version 0.19 online for over a year, however, 0.20 also exists from Sourceforge, if you know the link. With the introduction of INNO Setup version 5.2.3, the existing versions of innounp have proven to be unsucessful. I recently discovered that another version of innounp.exe exists and is maintained by ..:: LeecherMods ::.. .

This is a list of files available with the version 0.23 (Build: 080824) download. There are two files, one is a text file in Chinese with the revision history, the other is the executable, innounp.exe also in Chinese, however, does work in the English environment just fine.